New synthetic resins



'IIEO BOSEN'TEAL, OF LEVERKUSEN-ON-THE-BHINE, 9mm, ASQIGNOR T 1.6-.

Patented May 10, 1932 UN ITED STATES PATENT OFFICE FAR'BENIITDUSTRIE AKTIENGESELLSGHLAFT, OF rmxroar on-rnn-m, GER- m, A CORPORATION OF G NEW SYNTHETIC RESIZNB Io Drawing. Application filed April 23, 1929, Serial No. 857,

The present invention relates to the manufacture of new synthetic resins from crude solvent naphtha.

. obtained. The use of the fraction containing dition of phenols,

l tha or the phenols, the

phenol content whereof can be increased, if

esired or necessary, by the adlike, yields oil-soluble resins. ,When the phenol content of the reaction mixture amounts to about 9% or more of the quantity of indene present in the crude solvent naphtha resinssoluble in stand oil, prepared from lean, stored linseed'oil by heating (compare Chemical Abstracts, vol. VI, pp. 3190 and- 3192), are produced. a

e reaction is advantageously performed by causing small quantities of the boro-fiu'oro fatty acids (amounts of about 15% of the quantity of crude solvent naphtha being mentloned by way of example) to flow very slowwith stirring into the crude solvent naphmixture thereof with phenols or naphthols. By suitably adjusting the conditions of the reaction, for example by regulating theheight ofthe initial temperature, the rate of stirringor the addition of the catalyst, by dilution of the reaction mixture with an indifferent solvent such as xylene, toluene, benzene, pure solvent naphtha or the like, or by cooling, care is taken that the reaction temperature does not exceed the boiling point of thereaction mixture. After stircresols, n'aphthols and the and in Germany April 80, 1888.

ring for about 3-15 hours the reaction is complete in most cases, whereupon the reactlon liquid is treated with alkalies or alkaline earth oxides and the volatile constituents are removed in the known manner for instance by steam dlstillation or distillation in .vacuo' from-the filtered resin solution.

By. the use of boro-fluoro fatty acids, especially boro-fluoro acetic acid as catalysts, technically valuable, hi h-melting resins stable to solutions of alka tration and dilute mineral acids are obtained. These resins differ characteristically from the own products obtainable from crude solvent naphtha by means of sulfuric acid or metallic chlorides. While the latter always display a strongyellowish, yellowish-red or yellowish-brown color, which makes itself noticeable in a very undesirable manner in lacquers or artificial masses produced from these resins, the resins .The invention is illustrated by the followossessing ing examples, without being limited thereto,

the parts being by weight Example .1.200 parts of a crude solvent naphtha free from phenols and bases and boiling between 160-182 C. are diluted with 50 parts of xylene. Into the mixture heated to about 18-25 C. 2 parts of boro-fluoro acetic acid are dropped gradually with vigorous stirring. The temperature of'the reaction soon rises to 60-65. C. Stirring is continued for about 7 hours, after which the reaction liquid is diluted with 50' parts of purified solvent naphtha and heated to 80-- 100 C. for ,4 to an hour with -20 parts of quick lime or barium oxide while stirring "vigorously, It is'then filtered from the pretainable. Y

'es of any concen- V obtamable in accordance with the npresent inventlon are almost.

colorless or 0 to procipitate and the unresinified portion is disof indene.) are heated to about 50 C. with 11 tilled off under suitable reduced pressure. A parts of crude cresol, after which parts nearly colorless resin is obtained'which beof boro-fluoro-oleio acid are caused to rungins to sinter at 149 C. and melts at 189 C. in while stirring. The mixture is heated to 5 It is readily soluble in aromatic hydrocarabout 60 C. for 10 hours always while hens and like the products, obtainable in acstirring, diluted with 100 parts of benzene cordance with the following examples, can and worked up as described in Example 1. be worked up with cellulose ethers, if neces- A light, stand-oil soluble resin meltingat saw or desired with the addition of soften- 93 C. is thus obtained. ing agents to valuable, plastic masses. When Example 5.200 parts of a crude solvent 7 the polymerization of the crude solvent naphnaphtha of the boiling point 162189 C. havtha, above specified, is carried out in the ing been freed from bases and phenols are known manner with sulfuric acid a yellowheated to about 30 C. after which it is ish brown resin is obtained, which melts at stirredfor about 6 hours, while slowly add- 15 110 C. ing 5-7 parts of boro-fluoro propionic acid,

Example $2.-2 parts of borofluoro acetic whereby the temperature raises till to about acid are run slowly in the course of 2-3 hours 55 C. The reactionmixture is then worked with vigorous stirring into 100 parts of crude up as described in Example 3, a light-colored solvent naphtha heated to 35 C., boiling beresin of the melting point of 142 C. being 20 tween about 155-192 C. and containing 58% obtained. of cumaroneand indene and 4% of phenolic Example 6.To 500 parts of the starting substances, (phenols and cresols) while the material of Example 4, 10-18 parts of borotemperature of the reaction liquid rises to fluoro-lactic acid are slowly added at a tem- 60 C. The temperature is prevented by suitperature of 50 C. while stirring, after which 25 able cooling from rising considerably above the reaction mixture is further stirred for this level, the stirring is continued for 6-7 68 hours at a temperature between about hours and heating is then effected to 8090 5060 C. After working up as described in C. for half an hour with the addition of 25 Example 1, a light-colored resin melting at parts of xylene or puresolvent naphtha and 105 C. is obtained, being soluble in solvent 30 6 to 8 parts ofbarium oxide. The volatile naphtha, oil of turpentlne and turpentine constituents of the filtered, nearly colorless substitutes. reaction liquid are distilled off in vacuo. I claim I There remain 55 parts by weight of an almost 1. Process which comprises heating for colorless resin, which sinters at 140 C. and about 3 to 15 hours a crude solvent naphtha a5 melts at 165 C. The resin, which is soluble of aboiling oint between about 150 to 195 (3. in linseed oil, .wood oil, oil of turpentine, with the addition of aboro-fluoro-fatty acid I tetrahydro-naphthaline and aromatic hydroas condensing agent. carbons, can with advantage be used for the 2. Process which comprises heating for manufacture of oil lacquers. about 3 to 15 hours a crude solvent naphtha 4Q Example 3.To 600 parts of a crude solof a boiling point between about 150 to vent naphtha, free from phenols and bases, 195 C. containing a phenol with the addition containing 36% of indene and 20% of cumaof a boro-fiuoro-fatty acid as condensing rone and boiling between 164 to 185 C. are agent. added 21 parts of phenol or crude cresol or 3. Process which comprises heating for 45 33 parts of B-naphthol and the mixture is about 3 to 15 hours and at a temperature not heated to 30-40 when in the course of 3 exceeding the boiling point of the reaction hours 10 parts of boro-fluoro-acetic acid are mixture a crude solvent naphtha of a boilintroduced with vigorous stirring. The reing point between about 150 to 195 C. with action proceeds with-a marked rise of temthe addition of a boro-fluoro-fatty acid as so perature. After stirring for 10 hours the recondensing agent.

action mixtureis heated for half an hour to 1. Process which comprises heating for 90-100 C. with the addition of 25 parts of about 3 to 15 hours and at a temperature not uick lime and the but weakly colored reacexceeding the boiling point of the reaction tion liquid is then workedup in the manner mixture a crude solvent naphtha 'of a boil- 55 described in Example 2. 7 ing point between about 150 to 195 C. con- There are obtained 320 parts of a ver light taming a phenol with the addition of a bore.- colored resin, soluble-.instand oil an meltfluoro-fatty'acid as condensing agent. ing at 147 C. It can be worked u with 5. Process which comprises heating for linseed oil or a mixture ofwood oilan stand about 3 to 15 hours and at a temperature not 60 oil to hard elastic and ve 1i ht colored exceeding the boiling point of the reacti n lacquers or varnishes, yielding acquerings mixture a crude solvent naphtha of a boiltof excellent resistance to weather. ing point between about 150 to 195 C. with Example !;.-300 parts "of crude solvent the addition of 1 to 5% of a boro-fluoro-fatty' naphtha of the boiling int 186 0. acid as condensing agent.

l 65 (free of bases and pheno containing 4% v 6. Prooess which comprises heating for 130 about 3 to 15 hours and at a temperature not exceeding the boiling point of the reaction mixture a crude solvent naphtha of a boiling point between about 150 to 195 C. containing a phenol with the addition of l to 5% -of a boro-fluoro-fatty acid as condensing agent.

7. Process which comprises heatmg for about 3 to 15 hours a crude solvent na htha of a boiling point between 150 to 195 with the addition of boro-fluoro-acetic acid as condensing agent. 1

.8. Process which comprises heating for about 3 to 15 hours a crude solvent naphtha of a boiling point between about 150 to 195 0. containing a phenol with the addition of boro-fluoro-acetic acid as condensing agent. i

9. Process which comprises heating for about 3 to 15 hours and at a temperature not exceeding the boiling point of the reaction mixture a crude solvent naphtha of a boiling point between about 150 to 195 C. with the addition of boro-fluoro-acetic acid as condensing agent.

I 10. Process which comprises heating for about 3 to 15 hours and at a temperature not exceeding the boiling point of the reaction mixture a crude solvent naphtha of a boiling point between about 150 to 195 C. containing a phenol with the addition of bore-fluoroacetic acid.

11. The resins being obtainable accordin to the process claimed in claim 1, said resins being colorless to weakly colored substances of a melting point between about 90 and 170 C. and stable against solutions of alkalies of any concentration and dilute mineral acids. p u

12. The resins being obtainable according to the process claimed in claim 2, said resins being colorless to weakly colored substances of a melting point between about 90 and 170- C. and stable against solutions of alkalies of any concentration and dilute mineral acids.

13. The resins being obtainable according to the process claimed in claim 5, said resins being colorless to weakly colored substances of a melting point between about 90 and 170 CJand stable against solutions of alkalies of any concentration and dilute mineral acids.

14-. The resins being obtainable according to the process claimed in claim 9, said resins being colorless to weakly colored substances of a melting point between about 90 and 170 C. and stable against solutions 'of al-,

kalies of any concentration and dilute mineral acids. a

15. The resins being obtainable according to the process claimed in claim 10, said resins being colorless (to weakly colored substances of a melting point between about 90 and 170 C. and stable against solutions of a1- my hand.

LEO ROSENTHAL. 

